Nut lock



July 3; 1923. 1,460,884

0. J. BOUTTE NUT LOCK Filed April 12. 1922 Patented July 3, 1923.

arccALL,.,or BEAUMonr, 'rnxAs.

NUT Loon. ff

Application filed April 12, 1922. .Serial N0. 551,248.

To all whom it may concern Be it known that I, OorAvE JOHN Boo'r'rn, acitizen of the United States, residing at Beaumont. in the county ofJefferson and State of Texas, haveinvented certain new and usefulImprovements in Nut Locks, of which the following is a specification.

My invention relates to looks fornuts and bolts and more particularly toa. device for locking flat sided nuts and bolt heads, whether of square,hexagonal, or any other polygonal shape.

()no object of the invention is to construct the lock in such a mannerthat it may be used on any commercial fiat-sided bolt head or nutwithout any alterations such as drilling holes or cutting slots in thebolts or nuts.

In the accompanying drawing one embodiment of the invention isillustrated; and

Figure 1 shows a side view of a rail joint with the nut lock applied;

Figure 2 is a transverse section along line 2-2 of Figure 1; and i vFigure 3 is a perspective view of the de tails constituting the nutlock.

Reference numeral 10 represents a rail and 11 fish plates held togetherby means of a bolt 12 and a nut 13. Between the nut and the adjacentfish plate 11 is inserted a base 14, which is preferably provided withlips 15 bent to the rear of the base so as to be able to engagethebottom edge 17 of the corresponding fish plate or a notch thereinthereby preventing the turning of the base when the nut 13 is tightenedon the bolt 12, the base having a eircular'aperture 18 through which thebolt 12 penetrates. Along each side of the base 14: is provided anL-shaped flange 19, the perpendicular portion of which is intended toengage in the slot 20 formed between the fingers 21 and 22 inthe slide23. The transverse ledges 24 of the flanges extend outwardly over theouter fingers 22 of the slide 23 in order to hold. the slide tightlydown on the base. Between the inner fingers 21 is provide-d a re'cess25, which has the approximate width of the nut 13, for which it isintended and it will be evident, when the slide 23 is assembled on thebase Matter the nut 13 has been drawn up tightly, that the engagement between the fingers 21 andthe flat sides of the nut 13 permits nut.

of no loosening of the In order to rigidly secure the slide 23 on thebase 1 1 a slight projection 26 isprovided 011 the base and acorresponding-notch 27 oo'ravn may BOUTTE oF naaoiv oitn rniriis;ssent-R; or, 1 onaingm o] Jean 1). v

on the under side of the slide 23, which are situated with relation toeach other, so that they will engage, when the slide 23 is pushed inposition on the base 145.

It'will be evident that the locking device is applicable to any kind ofbolt heads and.

nuts and not only to rail joints, and it may for instance be used forsafety hand bolts onbox cars and in the latter case, I prefer ablyprovide a depression 28in the lower fact on any kind of machinerywhereone or more bolts and nuts need to be locked. The

Instead'of letting the lips 15 engage with the edge of a fishplate, itmay under; oer-- tain conditions be more advantageous to provide groovesor countersinks for them.

Havin is claime as newfis:

1. Anut lock comprising a base having" anaperture for a bolt, parallel.flanges on edge of the base 14. The device may also be. 7 usedwithadvantage on automobiles, and in thus described the invention what Y thebase and a slide having finger elements engaging with said flanges onboth sides 1 thereof, a recess being'formed between saidelementscorresponding to the width of the nut to be looked.

2. A nut lock comprising a base having an, aperture for a bolt, parallelflanges on p i the base and a slide having slottedfinger elements,engaging with their slotted pore tions, both sides of said flanges, saidfinger elements being spaced apart corresponding. to the width of thenut'to be locked, and-' means for securing the base and theslide inlocking position. 3. A nut lock an aperture for a bolt, parallel Lshaped flanges rising from the base and aslide having slotted fingerelements engaging with their slotted portions, both sides of saidflanges, said, finger elements being situated comprising a base havinglocked, said flanges terminating with outin the same plane and spacedapart'corresponding to the width ottheinutjto -be.

p at g a 1,460,884

Wardly directed ledges overlying said finger elements and means forsecuring the base on the slide in looking position.

4 The combination with a rail joint having fish plates and securingbolts with nuts; of a locking device for th'enuts comprising a baseseated between the nut and the fish plate around the bolt and havinglips adaptallel L-shaped flanges along the sides of the 10 the sameWidth as the nut to be locked, and I a projection on onei and a,corresponding notch on the other of saidbase an'dslide 15" i for rigidlysecuring them together.

In testimony whereof I my signature. OCTAVE JOHN BO'UTTE.

